﻿print('开始')print('加载中...')with open('hosts_new', 'r') as f0:    ffile0 = []    ffile0 = f0.readlines()with open('hosts_new', 'w') as ff:    ff.truncate()with open('hosts_old', 'r') as f1:    ffile1 = []    ffile1 = f1.readlines()    # ffile1[-1] = ffile1[-1] + '\r'with open('hosts_edited', 'w') as f2:    f2.truncate()    f2.write("".join(ffile1))    f2.write("".join(ffile0))print('修改完成')